[c-nsp] BGP/ASA/Internet Edge Design Question

[Donald Darko]

I guess what I'm looking at is this....If I bring another ISP into the
mix.....

ISP 1 connects to Router1 via a /30 assigned by ISP1
ISP 2 connects to Router2 via a /30 assigned by ISP2

Router1 would then need to connect to the ASA outside interface via a public
IP subnet?

The ASA outside interface is where outbound browsing traffic is NAT'd...so
it would have to be on a public network.  Correct?

On Wed, Sep 29, 2010 at 8:23 PM, Ryan West <rwest at zyedge.com> wrote:

> You can use private addressing if you like, but your provider can also
> assign you a /29 for the segment between your ASA and edge.  Try asking them
> for the extra allocation.
>
> Sent from handheld
>
> On Sep 29, 2010, at 8:08 PM, "Donald Darko" <donald.darko8 at gmail.com>
> wrote:
>
> > Hi All,
> >
> > I have a scenario where I would like to perform BGP with my current ISP
> and
> > am in need of a Internet Edge router; as currently my ASA connects
> directly
> > to them.  The IP subnet assignment that I'm using from my provider in my
> DMZ
> > will be my provider independent addresses.
> >
> > My question is....I'll need to put a new subnet between my ASA and my new
> > Internet router...it can't be a private subnet, because the Outside
> > interface of the ASA is where my web traffic is coming from.  What are my
> > options here?...try to subnet the already in use /24 provider independent
> > subnet in my DMZ and use a /29 as a connector subnet between the ASA
> Outside
> > interface and the Internet Edge router?
> >
> > Thanks
> >
> > Donald
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